Question 883194: find the ordered triple of these equations
x-2y+3z=-3
2x-3y-z=7
3x+y-2z=6
Answer by richwmiller(17219)   (Show Source):
You can put this solution on YOUR website! 1,-2,3,-3
2,-3,-1,7
3,1,-2,6
add down (-2/1) *row 1 to row 2
0,1,-7,13
add down (-3/1) *row 1 to row 3
0,7,-11,15
divide row 2 by 1/1
0,1,-7,13
add down (-7/1) *row 2 to row 3
0,0,38,-76
divide row 3 by 38/1
0,0,1,-2
add up (7/1) *row 3 to row 2
row 2 col 3
0,1,0,-1
add up (-3/1) *row 3 to row 1
row 1 col 2
1,-2,0,3
add up (2/1) *row 2 to row 1
row 1 col 2
1,0,0,1
final
1,0,0,1
0,1,0,-1
0,0,1,-2
(x,y,z) (1,-1,2)
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